Franciszek Bujak (16 August 1875–21 March 1953) – historian specialising in the economic and social history of Poland, founder of the so-called Lwów school (studies on the history of the settlement movement, elementary disasters, history of prices, large landed estates). Professor of history at the Jagiellonian University in 1909–1918, from 1919 connected with the University of Warsaw and the School of Economics in Warsaw (already as ordinary professor). In 1921–1941 lectured at the Jan Kazimierz University in Lwów, from 1946 to 1952 once again at the Jagiellonian University. Cooperated with the Polish Academy of Learning: corresponding member since 1917 and active member from 1922; in 1932–1934 and 1936–1937 fulfilled the function of chairman of the Historical Society and in 1933–1937 acted as chairman of the Scientific Society in Lwów.